ProtoMap

ProtoMap is a developer tool that maps how services, APIs, and data fields depend on each other across large gRPC and Protobuf codebases. Key capabilities: • Deterministic dependency mapping across repositories • Map updates on every commit • Service and API catalog with downstream consumer tracking • Field-level change impact analysis • Web app and MCP access for coding agents • Reduced token usage for code context Instead of spending hours searching code across repositories, engineers and coding agents query ProtoMap directly to see what a proposed change will affect. The map is built from your actual Protobuf definitions and gRPC service contracts, so results are reproducible rather than guessed from text search. Because the context stays current with every commit, teams avoid stale documentation and reduce the risk of breaking downstream consumers. One enterprise team reported an 8x reduction in change-planning time and token usage. Built for platform engineers, backend developers, and architects who manage microservices at scale, and for teams that use coding agents to modify distributed systems safely and cost-effectively. Access it through the web interface or connect it to CI checks and MCP-compatible agents.